I know this topic has probably been done to the floor, but have you and your friends just mess around in public just for fun...and bug people?
It's actually really fun once you drop any kind of self respect or dignity you have. My friend once walked on one leg for half a mile shouting "I pulled a hammy!'. Another friend would speak with a british accent and make rude remarks about the people that walked by.
I talked to a friend that wasn't really there. I called him Stan. Sure I got strage looks but it was fun.
Also I assure you all that no alcohol was involved. We are all just a bunch of idiots.